[Payment Request] Country selection coordinator

ios/chrome/browser/ui/payments/BUILD.gn

 # Copyright 2016 The Chromium Authors. All rights reserved.
 # Use of this source code is governed by a BSD-style license that can be
 # found in the LICENSE file.
 
 import("//ios/web/js_compile.gni")
 
 source_set("payments") {
   configs += [ "//build/config/compiler:enable_arc" ]
   sources = [
     "address_edit_coordinator.h",
     "address_edit_coordinator.mm",
     "address_edit_mediator.h",
     "address_edit_mediator.mm",
     "address_edit_view_controller.h",
     "address_edit_view_controller.mm",
+    "country_selection_coordinator.h",
+    "country_selection_coordinator.mm",
     "credit_card_edit_coordinator.h",
     "credit_card_edit_coordinator.mm",
     "credit_card_edit_mediator.h",
     "credit_card_edit_mediator.mm",
     "full_card_requester.h",
     "full_card_requester.mm",
     "js_payment_request_manager.h",
     "js_payment_request_manager.mm",
     "payment_items_display_coordinator.h",
     "payment_items_display_coordinator.mm",
@@ skipping 103 matching lines @@
     "//ui/base",
   ]
   libs = [ "UIKit.framework" ]
 }
 
 source_set("unit_tests") {
   configs += [ "//build/config/compiler:enable_arc" ]
   testonly = true
   sources = [
     "address_edit_coordinator_unittest.mm",
+    "country_selection_coordinator_unittest.mm",
     "credit_card_edit_coordinator_unittest.mm",
     "credit_card_edit_view_controller_unittest.mm",
     "payment_items_display_coordinator_unittest.mm",
     "payment_items_display_view_controller_unittest.mm",
     "payment_method_selection_coordinator_unittest.mm",
     "payment_request_coordinator_unittest.mm",
     "payment_request_error_coordinator_unittest.mm",
     "payment_request_error_view_controller_unittest.mm",
     "payment_request_selector_view_controller_unittest.mm",
     "payment_request_view_controller_unittest.mm",
@@ skipping 23 matching lines @@
     "//ios/chrome/test:test_support",
     "//ios/testing:ocmock_support",
     "//ios/third_party/material_components_ios",
     "//ios/web",
     "//ios/web:test_support",
     "//testing/gmock",
     "//testing/gtest",
     "//third_party/ocmock",
   ]
 }